Happy St Nicholas Day: Re-Launching the IPv6 ULA registry

Nico Schottelius <nico.schottelius@ungleich.ch> Sat, 05 December 2020 23:19 UTC

Return-Path: <nico@schottelius.org>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost []) by ietfa.amsl.com (Postfix) with ESMTP id 86E063A0E52 for <ipv6@ietfa.amsl.com>; Sat, 5 Dec 2020 15:19:37 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.75
X-Spam-Status: No, score=-0.75 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, GB_AFFORDABLE=1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=ungleich.ch
Received: from mail.ietf.org ([]) by localhost (ietfa.amsl.com []) (amavisd-new, port 10024) with ESMTP id nMDSFLuNNDHB for <ipv6@ietfa.amsl.com>; Sat, 5 Dec 2020 15:19:35 -0800 (PST)
Received: from smtp.ungleich.ch (smtp.ungleich.ch [IPv6:2a0a:e5c0:0:2:400:b3ff:fe39:7956]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 56C533A0E50 for <ipv6@ietf.org>; Sat, 5 Dec 2020 15:19:34 -0800 (PST)
Received: from bridge.localdomain (localhost [IPv6:::1]) by smtp.ungleich.ch (Postfix) with ESMTP id 83EAA21D23 for <ipv6@ietf.org>; Sun, 6 Dec 2020 00:19:32 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ungleich.ch; s=mail; t=1607210372; bh=oDxrkzTFqrkRql4OjwDC5Gjw8ee1+9h8f1GhDLf9WWU=; h=From:To:Subject:Date:From; b=cQkhk6mWvsSPXvGalaMX0EPXoiWAfqsMgrYCt77MMk6Y0ZFKor0NvMZBk8VSI1Bmk cFfnafRXhvF4ANPIS4cusZQa1KBn7oI4lEGq/jhjAkWzlo4VldaawWO0tyUMSa6cOt y0WBsWlp2umeGVCeQQLFitEGzHw/lf7jIvqxTHanZADNb0+iN2TLfPeoN49hI4Q3ry Tm9wYktyS0FjhvwYZyaxBFwfNWcsKAzsU7o1hWpILmJdeneai6UysIo8s29niYyDZx HOB+dsXR+hUY3yblcFn1qYLQK4BcWv5b7N602ucCqhzOQKopo75+rm4N80+lnM1Dfi XELL8A+4piakA==
Received: by bridge.localdomain (Postfix, from userid 1000) id 25B501A60327; Sun, 6 Dec 2020 00:19:45 +0100 (CET)
User-agent: mu4e 1.4.13; emacs 27.1
From: Nico Schottelius <nico.schottelius@ungleich.ch>
To: IPv6 List <ipv6@ietf.org>
Subject: Happy St Nicholas Day: Re-Launching the IPv6 ULA registry
Date: Sun, 06 Dec 2020 00:19:45 +0100
Message-ID: <87r1o3deni.fsf@ungleich.ch>
MIME-Version: 1.0
Content-Type: text/plain
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/fFpPHY55pwKlEopyyAZyZI8azg0>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 05 Dec 2020 23:19:38 -0000

Good morning,

we have just launched a ULA registry [0] as part of our IPv6 advent
calander [1]. While the reception, openness and opinions of whether or
not there should be a ULA registry at all differ, a ULA registry has
been requested multiple times from our customers in the past.

The source code of the ULA registry is fully Open Source and can be
found on [2]. It currently operates using the fd00::/8 subnet, whereas
draft-hain-ipv6-ulac-02 [3] suggests that RFC4193 should be followed for
that subnet and fc00::/8 should have been taken for a ULA registry.

However the original SixXS database records [4] on which we based our
work operatios in fd00::/8 and according to wikipedia [5] there is no
consensus over fc00::/8 in the IETF.

Speaking for ungleich, we do not use ULA ourselves, however our users
do. In this regard our position is somewhat neutral with the focus of
"enable users to move forward with IPv6".

However in the spirit of collaboration and finding a consensus for a ULA
registration, we could imagine phasing in fc00::/8 as the default prefix
for generating new prefixes while keeping the historic information of
the previously registered prefixes that originally came from SixXS.

Looking forward to your feedback.

Best regards from the snowy mountains in Switzerland,


[0] https://ula.ungleich.ch/
[1] https://ungleich.ch/u/advent-calendar/06/
[2] https://code.ungleich.ch/ungleich-public/ipv6ula
[3] https://tools.ietf.org/html/draft-hain-ipv6-ulac-02
[4] https://www.sixxs.net/tools/grh/ula/list/
[5] https://en.wikipedia.org/wiki/Unique_local_address

Modern, affordable, Swiss Virtual Machines. Visit www.datacenterlight.ch